They typically represent a specific quantity, they are place holders. For example, to write the equation of a line, you use the formula y=mx+b. each of the different letters represents a different aspect of the line (slope, y-intercept, etc...). Another example would be the area of a rectangle. BxH=A. B represents the lenghth of the Base, and H represents the Height, and A represents the Area.
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A formula is math sentence where you substitute numbers for letters and solve to get an unknown value.
formula- a rule or principle, frequently expressed in algebraicsymbols.
the steps you took to produce your answer 1 + 2 is a formula
it means something goes in letters or numbers
To Round To The Nearest Of Sumthing